Download or read book Sudoku X Book - 200 Hard to Master Puzzles 16x16 Vol.10 written by David Smith and published by . This book was released on 2021-02-10 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each puzzle consists of a 16x16 grid containing given clues in various places. The object is to fill all empty squares so that the numbers 1 to 16 appear exactly once in each row, column, diagonal and 4x4 box.